CN110307018A - A kind of non-uniform wall thickness constant-resistance energy absorption device - Google Patents
A kind of non-uniform wall thickness constant-resistance energy absorption device Download PDFInfo
- Publication number
- CN110307018A CN110307018A CN201910642474.9A CN201910642474A CN110307018A CN 110307018 A CN110307018 A CN 110307018A CN 201910642474 A CN201910642474 A CN 201910642474A CN 110307018 A CN110307018 A CN 110307018A
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- arcuate surface
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- shell
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 37
- 238000010276 construction Methods 0.000 claims abstract description 71
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000004992 fission Effects 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000012669 compression test Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000010219 correlation analysis Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/002—Auxiliary devices in which the prop type is not essential
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Vibration Dampers (AREA)
Abstract
The present invention discloses a kind of non-uniform wall thickness constant-resistance energy absorption device, its for steel plate enclose connect made of polyhedral shell structure, the upper surface and lower end surface of shell are polygonal structure, shell is equipped at least one closure scrimp line being formed by connecting from beginning to end, being closed scrimp line includes indent scrimp line and evagination scrimp line, indent scrimp line is in be arranged alternately on closure scrimp line with evagination scrimp line, two side positions are respectively equipped with inner concave and lower inner concave to indent scrimp line on shell up and down, two side positions are respectively equipped with arcuate surface and lower arcuate surface to evagination scrimp line on shell up and down, upper pressure-bearing support construction is equipped with positioned at the outside of each upper arcuate surface.The present invention on each upper arcuate surface by being arranged multiple pressure-bearing support constructions, so that the steel plate structure of arcuate surface is presented not uniform thickness and is arranged, in bearing strain, biggish support force can be born, solves the problems, such as that excavation support structural failure and column when bump occurs are lost.
Description
Technical field
The invention belongs to mining safety technical fields, and in particular to a kind of non-uniform wall thickness constant-resistance energy absorption device.
Background technique
Bump is a kind of serious collery's surface movement, can do great damage to underworkings and working face and
Casualties, it has also become the global problem of underground rock and rock mechanics field.In recovery process, positive master should be taken
Dynamic precautionary measures and strong supporting measure, to ensure working safety.
At present pit mining and supporting field mostly use hydraulic support carry out supporting, however due to bump occur when
Between it is short, intensity is high, release energy big feature, traditional hydraulic support safeguard protection usually have little time step down unloading so that branch
There is the problem of destroying, column is lost and supporting construction fails in column, and causes supporting construction that can not play effective supporting role, makes
It obtains operation safety and is unable to get guarantee.
A kind of mining fast energy absorption erosion prevention yielding component is disclosed in Chinese patent literature CN 202596748U,
Tubular structure with scrimp shape, as shown in Figure 1, the extrusion process used for forming of entire resigning support unit is as shown in Fig. 2, entire
It is as shown in Figure 3 that extrusion process used for forming is formed by the relation curve between displacement and axial bearing capacity.
The a stage: erosion control component is linearly increased without deformation bearing capacity substantially substantially；
B-stage: the upper inner concave 2 of erosion control component starts to contract, bearing capacity rapid decrease, and compression displacement quickly increases
Add, upper arcuate surface 4 is gradually curved folding；The of short duration decline (bending fold resistance) of bearing capacity；
The c stage: evagination scrimp line 12 is slightly expanded outward.Upper arcuate surface 4 starts to be bent simultaneously, and upper inner concave 2 generates
Axial to fold, bearing capacity improves.At the end of, radial dilatation to maximum；
The d stage: ibid arcuate surface 4 is consistent with upper inner concave 2 with lower arcuate surface 5 for lower inner concave 3, mutual extrusion occurs to one
After determining degree, bearing capacity starts to reduce, final to flatten completely；
The e stage: end portion repeats the c stage again, and lower inner concave 3 and lower arcuate surface 5 are folded.
For entire erosion control resigning component during being gradually squeezed and deformed, axial carrying fluctuation is larger, is unfavorable for protecting
Bracket, supporting construction is whole, and it is easy to appear Problem of Failure.
Summary of the invention
For existing mining erosion control component after bump is more than its ultimate load, load decline is very fast, it is not easy to protect
The problems such as holding proposes that a kind of initial support power is larger, and the non-homogeneous of near constant support force is provided during compressive deformation
Wall thickness constant-resistance energy absorption device, and then protective cradle.Meanwhile energy absorption device in compressive deformation with certain stroke, impacting
Ground pressure plays the role of resigning, maximum protective cradle and column when raw, guarantees the globality of structure.
Used technical solution is as follows:
A kind of non-uniform wall thickness constant-resistance energy absorption device encloses polyhedral shell structure made of connecing for steel plate, the shell
Upper surface and lower end surface are polygonal structure, and the shell is equipped at least one closure scrimp line being formed by connecting from beginning to end,
The closure scrimp line includes indent scrimp line and evagination scrimp line, and the indent scrimp line and evagination scrimp line are in the closure
In being arranged alternately on scrimp line, two side positions are respectively equipped with connected to it in angle above and below the indent scrimp line on the shell
The upper inner concave and lower inner concave being arranged, evagination scrimp line on the shell up and down two side positions be respectively equipped with it is connected to it
In upper arcuate surface and lower arcuate surface that angle is arranged, upper pressure-bearing support construction, institute are equipped with positioned at the outside of each upper arcuate surface
Stating pressure-bearing support construction is arranged wall thickness of the upper arcuate surface on the direction perpendicular with axial bearing capacity in non-uniform thickness,
The maximum axial bearing capacity that the upper pressure-bearing support construction is born in compressive deformation keeps nearly steady state.
The upper pressure-bearing support construction is arranged along the upper arcuate surface axial bearing capacity direction, with axial bearing capacity phase
Be set in distance multiple upper pressure-bearing support constructions on vertical direction.
Each lower arcuate surface on the downside of the closure scrimp line is equipped with multiple lower pressure-bearing support constructions, described lower outer
The upper pressure-bearing support construction on the corresponding upper arcuate surface of the lower pressure-bearing support construction on convex surface is in fission
Setting.
The institute on the corresponding upper arcuate surface is arranged in the lower pressure-bearing support construction on the lower arcuate surface
On the extending direction for stating pressure-bearing support construction.
Each upper arcuate surface is set there are two the upper pressure-bearing support construction, and each lower arcuate surface is equipped with two
A lower pressure-bearing support construction, the upper pressure-bearing support construction and lower pressure-bearing support construction are close to the evagination scrimp line
End positions setting.
It is additionally provided with the upper pressure-bearing support construction on the upper inner concave, is additionally provided with the lower pressure-bearing on the lower inner concave
Support construction.
The upper pressure-bearing support construction and lower pressure-bearing support construction are support rod or steel bar structure.
The closure along its medial surface or lateral surface setting is respectively equipped on the inside of the upper surface of the shell and on the inside of lower end surface
Ribs.
Positioned at the closure scrimp line two sides upper inner concave quantity or lower inner concave quantity and upper arcuate surface quantity or
The number of edges that lower arcuate surface quantity is formed by polygonal structure with the shell upper surface or lower end surface is consistent.
The closure scrimp line is eight-sided formation, and the upper surface and lower end surface of the shell are quadrilateral structure.
Technical solution of the present invention has the advantages that
A. the present invention on each upper arcuate surface by being arranged multiple pressure-bearing support constructions, so that the steel plate structure of arcuate surface
Not uniform thickness is presented to be arranged, in bearing strain, can bear biggish support force, and can rapid deformation resigning, absorption impact energy,
To protect, hydraulic support, column are not damaged and supporting structure does not fail, and solve excavation support when bump occurs
The problem of structural failure and column are lost.
B. this energy absorption device can satisfy the performance requirements such as hydraulic support ultimate bearing capacity, deformation energy-absorbing, be provided in particular in
In terms of counter-force, combination constant-resistance energy absorption device can guarantee that bracket reaches capacity after bearing capacity, and support force is held essentially constant, will not
There is bust, under the premise of guaranteeing initial support power, so that protective cradle to the maximum extent, guarantees that supporting construction is not lost integrally
Effect.
C. for the present invention in hydraulic prop in application, when bump is to press, the entire shell of energy absorption device generates modeling
Property bending and it is radial uphold to carry out energy-absorbing, and its support force provided in compression process keeps stablizing or gradually increasing,
Reduce a possibility that secondary pulse occurs.There is reasonable stroke, it is ensured that there are certain resigning process, pressures for it when housing compresses
On the support, the occupied area of entire shell is reduced stable structure after flat after flattening, will not be made in this way to hydraulic prop
At transverse shear stress, the original supporting role of hydraulic prop is not destroyed.
Detailed description of the invention
It, below will be to needed in specific embodiment in order to illustrate more clearly of the specific embodiment of the invention
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the present invention, for this field
For those of ordinary skill, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the perspective view of existing energy absorption device provided by the present invention；
Fig. 2 is to carry out compressional deformation procedure chart to structure shown in Fig. 1；
Fig. 3 is cracking schematic diagram shown in FIG. 1；
Fig. 4 is energy absorption device stereoscopic schematic diagram provided by the present invention (upper arcuate surface setting pressure-bearing support construction)；
Fig. 5 is that energy absorption device stereoscopic schematic diagram provided by the present invention (is respectively provided with pressure-bearing on upper arcuate surface and lower arcuate surface
Support construction)；
Fig. 6 is structure sectional view shown in Fig. 5；
Fig. 7 is Fig. 5 energy absorption device model cracking figure；
Fig. 8 is the compressive deformation schematic diagram of energy absorption device finite element model shown in Fig. 5.
Description of symbols:
1- is closed scrimp line
11- indent scrimp line, 12- evagination scrimp line
The upper inner concave of 2-；Inner concave under 3-；The upper arcuate surface of 4-；Arcuate surface under 5-；
The upper pressure-bearing support construction of 6-；Pressure-bearing support construction under 7-；8- is closed ribs.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in figure 4, being enclosed the present invention provides a kind of non-uniform wall thickness constant-resistance energy absorption device for steel plate more made of connecing
Face shell structure, the upper surface and lower end surface of shell are polygonal structure, and shell is equipped at least one and is formed by connecting from beginning to end
Closure scrimp line 1, closure scrimp line 1 includes indent scrimp line 11 and evagination scrimp line 12, and indent scrimp line 11 and evagination are rolled over
Streakline 12 is in being arranged alternately on closure scrimp line 1, and about 11 two side position of indent scrimp line on shell is respectively equipped with and it
What is connected is in the upper inner concave 2 and lower inner concave 3 of angle setting, and about 12 two side position of evagination scrimp line on shell is set respectively
There is the upper arcuate surface 4 and lower arcuate surface 5 connected to it in angle setting, is equipped with upper pressure-bearing positioned at the outside of each upper arcuate surface 4
Support construction 6, upper pressure-bearing support construction 6 make wall thickness of the arcuate surface 4 on the direction perpendicular with axial bearing capacity in non-etc.
Thickness setting, the maximum axial bearing capacity that upper pressure-bearing support construction 6 is born in compressive deformation keep nearly steady state.Here
It is 120-150 ° that upper arcuate surface 4, which is formed by certain angle alpha with lower arcuate surface 5, as shown in Figure 6.
Preferably upper pressure-bearing support construction 6 is arranged along upper 4 axial bearing capacity direction of arcuate surface in the present invention, with axis
Be set in distance multiple upper pressure-bearing support constructions on the direction perpendicular to bearing capacity.
Meanwhile in order to improve just enabling capabilities, as shown in Fig. 5 and Fig. 6 structure, the present invention is also in 1 downside of closure scrimp line
Each lower arcuate surface 5 be equipped with multiple lower pressure-bearing support constructions 7, lower evagination 5) on lower pressure-bearing support construction 7 it is corresponding
Upper pressure-bearing support construction 6 on upper arcuate surface 5 is in split settings.Wherein, the lower pressure-bearing support construction 7 on lower arcuate surface 5 is preferred
It is arranged on the extending direction of the upper pressure-bearing support construction 6 on corresponding upper arcuate surface 4.It can certainly be by upper pressure-bearing branch
Support structure 6 and the presentation of lower pressure-bearing support construction 7 are staggered.
It is further preferred that present invention arcuate surface 4 on each is set there are two upper pressure-bearing support construction 6, under each
Lower pressure-bearing support construction 7 there are two setting on arcuate surface 5, upper pressure-bearing support construction 6 and lower pressure-bearing support construction 7 are close to evagination scrimp
The end positions of line 12 are arranged.
Here upper pressure-bearing support construction and lower pressure-bearing support construction can round or quadrate support rod structure or steel bar knot
Structure, steel bar structure can be cut by steel plate here.In order to further increase highest bearing capacity, the present invention is also in shell
Upper surface on the inside of and lower end surface on the inside of be respectively equipped with along its medial surface or lateral surface setting closure ribs 8.
As shown in figure 5, the present invention carries out force analysis to energy absorption device, used moulded dimension is as follows: scrimp steel plate
Thickness is 8mm, and having the reinforcement at closure ribs is 12mm, and the upper surface of energy absorption device and lower end surface shape are positive
Rectangular, side length 188mm, the closure scrimp wire shaped approximation octagon at middle part, side length is about 90mm, generally a step scrimp,
Structure height 168mm.
By carrying out correlation analysis to model stress shown in fig. 5 using uniaxial compression test and in conjunction with FEM calculation,
Obtained model cracking is as shown in fig. 7, limited element calculation model deformation is as shown in Figure 8.By calculating, finite element mould
Quasi-, laboratory experiment, obtains reasonably combined between steel plate materials attribute and size, enables to absorb when energy absorption device compressive deformation
Biggish energy and stabilization form preset pressure texture.
In conjunction with Fig. 5 and Fig. 7, specific compression test process is as follows:
The a stage: substantially without deformation, bearing capacity linearly increases the shell of energy absorption device substantially；
B-stage: the upper inner concave 2 of energy absorption device starts to contract, and compression displacement quicklys increase, and upper arcuate surface 4 is gradually
Bending fold, the of short duration decline of bearing capacity form bending fold and resist.Due to the presence of pressure-bearing support construction, bending strength
Larger, bearing capacity decline is unobvious.
The c stage: to after to a certain degree, local bending strength increases for the upper bending of arcuate surface 4.Entire shell structure is in entirety
The weak position of local bending strength is found, is slightly expanded outward from evagination scrimp line 12.Upper arcuate surface 4 starts to be bent simultaneously,
Upper inner concave 2 generates axial folding, and bearing capacity improves.
The d stage: ibid inner concave 2 is consistent with upper arcuate surface 4 with lower arcuate surface 5 for lower inner concave 3, mutual extrusion occurs to one
After determining degree, bearing capacity starts to reduce, final to flatten completely.Support rod in figure is with steel plate jointly by curved, carrying energy
Power descent amplitude is smaller.
E-stage: end portion repeats the c stage again, and lower inner concave 3 and lower arcuate surface 5 are folded, and the abcd stage is not complete
The part overlapped entirely, is superimposed together completely, forms flat rock-steady structure, and bearing capacity improves.
It can be seen from figure 7 that each pressure-bearing support construction being set in distance enhance steel plate by curved ability, be bent
And during folding, stress does not decline substantially.
Energy absorption device of the invention is placed in hydraulic column, when bump is to press, the entire shell of energy absorption device
Generate plastic bending and it is radial uphold to carry out energy-absorbing, and its support force provided in compression process keeps stablizing or gradually
Increase, reduces a possibility that secondary pulse occurs.There is reasonable stroke, it is ensured that there are certain resignings for it when housing compresses
Journey, on the support, the occupied area of entire shell is reduced the stable structure after flattening after flattening, in this way will not be to hydraulic branch
Column causes transverse shear stress, does not destroy the original supporting role of hydraulic prop.
The shell structure that the present invention is made of the steel plate with special angle scrimp welds pressure-bearing branch in the steel plate of special angle
Support structure is close to steel plate lateral surface, so that foring the spaced Steel Ruler of thickness in the horizontal circumferential direction of arcuate surface
Very little structure: in pressurized process, the steel plate and pressure-bearing support construction of special angle form the stress shape mutually restrained with deforming
State.The present invention is radially upheld using plastic bending and shell come energy-absorbing, and the existing actual buckling energy-absorbing of pipe fitting energy absorption device is simultaneously
Unstable, Deformation control is poor；The strength of materials is limited, and initial support power is too small.The present invention has the characteristics of thin-wall case, and passes through
Set concave-convex scrimp and pressure-bearing support construction, overcomes the unstable disadvantage of buckling energy-absorbing, and overcome initial support power
Lesser disadvantage, it is contemplated that energy-absorbing effect is far better than other thin-wall pipes.It is held by increasing on each arcuate surface and inner concave
The endergonic structure of pressure support construction ensure that biggish initial bearing capacity in uniaxial compression, and effectively keep close to perseverance
Fixed load is enhanced to energy absorption device dead load shock-absorbing capacity under Impact Load.
Certainly, the present invention can also be equipped with upper pressure-bearing support construction 6 on upper inner concave 2, be additionally provided with down on lower inner concave 3
Pressure-bearing support construction 7 can also be equipped with pressure-bearing support construction with an inner concave wherein.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
Variation is still in the protection scope of this invention.
Claims (10)
1. a kind of non-uniform wall thickness constant-resistance energy absorption device, enclose polyhedral shell structure made of connecing for steel plate, the shell it is upper
End face and lower end surface are polygonal structure, and the shell is equipped at least one closure scrimp line (1) being formed by connecting from beginning to end,
The closure scrimp line (1) includes indent scrimp line (11) and evagination scrimp line (12), the indent scrimp line (11) and evagination
Scrimp line (12) is in be arranged alternately on the closure scrimp line (1), which is characterized in that the indent scrimp line on the shell
(11) two side positions are respectively equipped with the upper inner concave (2) and lower inner concave (3) connected to it in angle setting, the shell up and down
Evagination scrimp line (12) on body up and down two side positions be respectively equipped with the upper arcuate surface (4) connected to it in angle setting and under
Arcuate surface (5), the outside for being located at each upper arcuate surface (4) are equipped with upper pressure-bearing support construction (6), the upper pressure-bearing support construction
(6) wall thickness of the upper arcuate surface (4) on the direction perpendicular with axial bearing capacity is set in non-uniform thickness, the upper pressure-bearing
The maximum axial bearing capacity that support construction (6) is born in compressive deformation keeps nearly steady state.
2. non-uniform wall thickness constant-resistance energy absorption device according to claim 1, which is characterized in that the upper pressure-bearing support construction
(6) it is arranged along upper arcuate surface (4) the axial bearing capacity direction, is set on the direction perpendicular with axial bearing capacity in interval
Set multiple upper pressure-bearing support constructions (6).
3. non-uniform wall thickness constant-resistance energy absorption device according to claim 2, which is characterized in that along the closure scrimp line
(1) each lower arcuate surface (5) on the downside of is equipped with multiple lower pressure-bearing support constructions (7), described on the lower arcuate surface (5)
The upper pressure-bearing support construction (6) on the corresponding upper arcuate surface (5) of lower pressure-bearing support construction (7) sets in fission
It sets.
4. non-uniform wall thickness constant-resistance energy absorption device according to claim 3, which is characterized in that on the lower arcuate surface (5)
The lower pressure-bearing support construction (7) the upper pressure-bearing support construction on the corresponding upper arcuate surface (4) is set
(6) on extending direction.
5. non-uniform wall thickness constant-resistance energy absorption device according to claim 4, which is characterized in that each upper arcuate surface
(4) it sets there are two the upper pressure-bearing support construction (6), sets that there are two the lower pressure-bearing supports on each lower arcuate surface (5)
The two of the close evagination scrimp line (12) of structure (7), the upper pressure-bearing support construction (6) and lower pressure-bearing support construction (7)
End position setting.
6. -5 any non-uniform wall thickness constant-resistance energy absorption device according to claim 1, which is characterized in that the upper inner concave
(2) it is additionally provided with the upper pressure-bearing support construction (6) on, is additionally provided with the lower pressure-bearing support construction on the lower inner concave (3)
(7)。
7. non-uniform wall thickness constant-resistance energy absorption device according to claim 6, which is characterized in that the upper pressure-bearing support construction
(6) and lower pressure-bearing support construction (7) is support rod or steel bar structure.
8. non-uniform wall thickness constant-resistance energy absorption device according to claim 7, which is characterized in that in the upper surface of the shell
The closure ribs (8) along its medial surface or lateral surface setting are respectively equipped on the inside of side and lower end surface.
9. non-uniform wall thickness constant-resistance energy absorption device according to claim 1, which is characterized in that be located at the closure scrimp line
(1) upper inner concave (2) quantity or lower inner concave (3) quantity and upper arcuate surface (4) quantity of two sides or lower arcuate surface (5) number
The number of edges for being formed by polygonal structure with the shell upper surface or lower end surface respectively is measured to be consistent.
10. non-uniform wall thickness constant-resistance energy absorption device according to claim 9, which is characterized in that the closure scrimp line (1)
For eight-sided formation, the upper surface and lower end surface of the shell are quadrilateral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910642474.9A CN110307018B (en) | 2019-07-16 | 2019-07-16 | Non-uniform wall thickness constant resistance energy absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910642474.9A CN110307018B (en) | 2019-07-16 | 2019-07-16 | Non-uniform wall thickness constant resistance energy absorbing device |
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| Publication Number | Publication Date |
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| CN110307018A true CN110307018A (en) | 2019-10-08 |
| CN110307018B CN110307018B (en) | 2024-03-29 |
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ID=68080276
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910642474.9A Active CN110307018B (en) | 2019-07-16 | 2019-07-16 | Non-uniform wall thickness constant resistance energy absorbing device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070023987A1 (en) * | 2005-05-23 | 2007-02-01 | Kling Daniel H | Folding methods, structures and apparatuses |
| CN101646583A (en) * | 2007-03-07 | 2010-02-10 | 成俊烨 | The automobile crash box |
| CN102606177A (en) * | 2012-03-28 | 2012-07-25 | 北京诚田恒业煤矿设备有限公司 | Hydraulic prop for hydraulic support system |
| KR20120118276A (en) * | 2011-04-18 | 2012-10-26 | 정운덕 | The crash box used a car |
| CN102917920A (en) * | 2010-04-30 | 2013-02-06 | 康奈尔大学 | Control of structural performances in load-bearing components by means of strength-altering, friction stir processed patterns |
| JP2014168996A (en) * | 2013-03-01 | 2014-09-18 | Nippon Steel & Sumitomo Metal | Tubular structure body and automobile frame structure body using tubular structure body |
| CN105507457A (en) * | 2016-02-04 | 2016-04-20 | 东南大学 | Two-side connection assembly type creased steel plate shear wall with plastic hinge guiding mechanism |
| CN210919093U (en) * | 2019-07-16 | 2020-07-03 | 北京诚田恒业煤矿设备有限公司 | Non-uniform wall thickness constant resistance energy absorption device |
-
2019
- 2019-07-16 CN CN201910642474.9A patent/CN110307018B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070023987A1 (en) * | 2005-05-23 | 2007-02-01 | Kling Daniel H | Folding methods, structures and apparatuses |
| CN101646583A (en) * | 2007-03-07 | 2010-02-10 | 成俊烨 | The automobile crash box |
| CN102917920A (en) * | 2010-04-30 | 2013-02-06 | 康奈尔大学 | Control of structural performances in load-bearing components by means of strength-altering, friction stir processed patterns |
| KR20120118276A (en) * | 2011-04-18 | 2012-10-26 | 정운덕 | The crash box used a car |
| CN102606177A (en) * | 2012-03-28 | 2012-07-25 | 北京诚田恒业煤矿设备有限公司 | Hydraulic prop for hydraulic support system |
| JP2014168996A (en) * | 2013-03-01 | 2014-09-18 | Nippon Steel & Sumitomo Metal | Tubular structure body and automobile frame structure body using tubular structure body |
| CN105507457A (en) * | 2016-02-04 | 2016-04-20 | 东南大学 | Two-side connection assembly type creased steel plate shear wall with plastic hinge guiding mechanism |
| CN210919093U (en) * | 2019-07-16 | 2020-07-03 | 北京诚田恒业煤矿设备有限公司 | Non-uniform wall thickness constant resistance energy absorption device |
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| Publication number | Publication date |
|---|---|
| CN110307018B (en) | 2024-03-29 |
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